气候变化领域集成服务门户(CCPortal): Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1)

CCPortal

DOI	10.1029/2018MS001538
	Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1)
	Gu S.; Liu Z.; Jahn A.; Rempfer J.; Zhang J.; Joos F.
发表日期	2019
ISSN	19422466
起始页码	624
结束页码	640
卷号	11 期号:3
英文摘要	Neodymium (Nd) isotopic composition (εNd) is an important tracer for water mass mixing and the reconstruction of past ocean circulation. To allow for a direct model-data comparison, we have implemented Nd isotopes in the ocean component of the Community Earth System Model (CESM1.3). The model is able to capture the major features of the observed modern distribution of both εNd and Nd concentrations. Our model provides a useful tool for the interpretation of εNd reconstructions. For example, we show that in an idealized North Atlantic freshwater hosing experiment, εNd changes in the Atlantic are documenting primarily the changes in water mass mixing and are hardly affected by the concomitant and large changes in the marine biological productivity and organic matter fluxes. However, the hosing experiment also shows that the end-member changes due to the change of ocean circulation can influence the interpretation of εNd in the Atlantic, depending on the location. The implementation of Nd, together with other existing tracers, such as δ18O, 231Pa/230Th, δ13C, and radiocarbon in the same model, can improve our understanding of past ocean circulation significantly. ©2019. The Authors.
英文关键词	CESM; isotope modeling; Nd isotopes
语种	英语
scopus关键词	Isotopes; Mixing; Neodymium; Biological productivity; CESM; Earth system model; Isotopic composition; Nd isotopes; Neodymium isotopes; Neodymiums (Nd); Ocean circulation; Oceanography; climate modeling; concentration (composition); isotopic composition; modeling; neodymium isotope; oceanic circulation; organic matter; paleoceanography; reconstruction; water mass
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156947
作者单位	Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, United States; Now at Physical Oceanography Laboratory, Ocean University of China, Qingdao, China; Atmospheric Science Program, Department of Geography, The Ohio State University, Columbus, OH, United States; Department for Atmospheric and Oceanic Sciences and Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States; Climate and Environmental Physics, Physics Institute and Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland; Computational Physics and Methods (CCS-2) and Center for Nonlinear Studies (CNLS), Los Alamos National Laboratory, Los Alamos, NM, United States
推荐引用方式 GB/T 7714	Gu S.,Liu Z.,Jahn A.,et al. Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1)[J],2019,11(3).
APA	Gu S.,Liu Z.,Jahn A.,Rempfer J.,Zhang J.,&Joos F..(2019).Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1).Journal of Advances in Modeling Earth Systems,11(3).
MLA	Gu S.,et al."Modeling Neodymium Isotopes in the Ocean Component of the Community Earth System Model (CESM1)".Journal of Advances in Modeling Earth Systems 11.3(2019).